Chuck arrangement

Clamping chuck jaw part having a second central axis and a contact surface perpendicular to said second central axis, which clamping chuck jaw part is arranged to engage with a backing chuck jaw part having a first central axis, in which engagement the contact surface is arranged in contact with a corresponding contact surface on said backing chuck jaw part so as to together form a chuck jaw for a chuck, wherein the backing chuck jaw part is manufactured from a harder metal material than a metal material from which the clamping chuck jaw part is manufactured, a cross-section of the clamping chuck jaw part along said second central axis comprises a concave structure, and the concave structure is arranged to engage with a corresponding convex structure of a cross-section along said first central axis of the backing chuck jaw part so that the said concave structure is arranged to be permanently deformed as a result of an engagement between said convex and said concave structures resulting from the backing and clamping chuck jaw parts first being arranged in a contacting orientation, wherein the first and second central axes, respectively, are aligned with each other and the respective contact surfaces are facing each other, and thereafter being pressed together into an engagement orientation, in which contact is established between said contact surfaces.